Both players suffered their season-ending injuries on the same play during Sunday's win over the New Orleans Saints.

Williams, who caught 14 passes for 212 yards and one touchdown this season and
was also an option to return kicks on special teams, tore the anterior
cruciate ligament in his left knee.

Hunter, a reliable backup to running back Frank Gore, suffered a torn Achilles
tendon. The second-year back had carried the ball 72 times for 371 yards and
two scores through the first 11 games for the NFC West leaders.

The club made three other moves on Wednesday, adding running back Jewel
Hampton to the active roster, signing wide receiver Chad Hall to the practice
squad and waiving safety Eddie Whitley from the practice squad.